C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/6
C04B 35/56 (2006.01) C04B 35/71 (2006.01)
Patent
CA 1044704
SILICEOUS BONDED REFRACTORY Abstract of the Disclosure The strength and density of fired articles made from silicon carbide are improved by the addition of about 1/2 to 3 percent of finely divided silicon metal. Optimum strength is achieved when the articles contain a small amount of silica in addition to the silicon metal. When the refrac- tory mixtures are fired at 2500 to 2700°F in an oxidizing atmosphere, the silicon reacts with oxygen and other constitu- ents of the mix to form a strong refractory siliceous bonding network. - 1 -
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